1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #ifndef SkCGUtils_DEFINED 9 #define SkCGUtils_DEFINED 10 11 #include "SkTypes.h" 12 13 #ifdef SK_BUILD_FOR_MAC 14 #include <ApplicationServices/ApplicationServices.h> 15 #endif 16 17 #ifdef SK_BUILD_FOR_IOS 18 #include <CoreGraphics/CoreGraphics.h> 19 #endif 20 21 class SkBitmap; 22 class SkStream; 23 24 /** 25 * Create an imageref from the specified bitmap using the specified colorspace. 26 * If space is NULL, then CGColorSpaceCreateDeviceRGB() is used. 27 */ 28 SK_API CGImageRef SkCreateCGImageRefWithColorspace(const SkBitmap& bm, 29 CGColorSpaceRef space); 30 31 /** 32 * Create an imageref from the specified bitmap using the colorspace returned 33 * by CGColorSpaceCreateDeviceRGB() 34 */ 35 static inline CGImageRef SkCreateCGImageRef(const SkBitmap& bm) { 36 return SkCreateCGImageRefWithColorspace(bm, NULL); 37 } 38 39 /** 40 * Draw the bitmap into the specified CG context. The bitmap will be converted 41 * to a CGImage using the generic RGB colorspace. (x,y) specifies the position 42 * of the top-left corner of the bitmap. The bitmap is converted using the 43 * colorspace returned by CGColorSpaceCreateDeviceRGB() 44 */ 45 void SkCGDrawBitmap(CGContextRef, const SkBitmap&, float x, float y); 46 47 bool SkPDFDocumentToBitmap(SkStream* stream, SkBitmap* output); 48 49 /** 50 * Return a provider that wraps the specified stream. It will become an 51 * owner of the stream, so the caller must still manage its ownership. 52 * 53 * To hand-off ownership of the stream to the provider, the caller must do 54 * something like the following: 55 * 56 * SkStream* stream = new ...; 57 * CGDataProviderRef provider = SkStreamToDataProvider(stream); 58 * stream->unref(); 59 * 60 * Now when the provider is finally deleted, it will delete the stream. 61 */ 62 CGDataProviderRef SkCreateDataProviderFromStream(SkStream*); 63 64 #endif 65
